Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1JUM callsign genealogy
Currently held by Jewett, John F
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W1JUM's current licensee, walking backwards.
- Thomas, Jewett HMEgranted 2018-02-23cancelled 2018-03-16
Successor callsigns
Callsigns held now by people who previously held W1JUM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1JUM, oldest first.
- Jewett, John F MA1998-04-17 → cancelled 2008-12-19
- Thomas, Jewett H ME2018-03-16 active